Sampling point

Concentration Fe

In ppm Cr

Pb

V

Ni

V/Ni

NwataA

363.37 ± 4.7

2.18 ± 0.03

1.75 ± 0.04

0.08 ± 0.02

1.19 ± 0.02

0.07

NwataB

857.2 ± 9.6

4.2 ± 0.03

1.68 ± 0.03

0.06 ± 0.01

1.1 ± 0.02

0.05

Nwata3’

2112.8 ± 6.4

8.74 ± 0.14

5.85 ± 0.08

0.13 ± 0.01

2.02 ± 0.01

0.06

Egeyaro

948.27 ± 6.9

4.23 ± 0.08

10.87 ± 0.04

0.14 ± 0.01

2.08 ± 0.02

0.07

Ochani

989.17 ± 9.6

3.73 ± 0.05

3.68 ± 0.03

0.16 ± 0.01

2.21 ± 0.02

0.04